Cita APA (7th ed.)

PETERSON, W. L. (1974). Principles of economics macro. Richard D. Irwin.

Cita Chicago (17th ed.)

PETERSON, Willis L. Principles of Economics Macro. Homewood: Richard D. Irwin, 1974.

Cita MLA (9th ed.)

PETERSON, Willis L. Principles of Economics Macro. Richard D. Irwin, 1974.